Envelopes – wrappers – and paperboard boxes – Paperboard box – Adjacent sidewalls connected only by a separate securing...
Patent
1990-07-09
1991-07-23
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Adjacent sidewalls connected only by a separate securing...
220642, 229199, B65D 544
Patent
active
050336690
ABSTRACT:
A collapsible box for holding articles in general comprises a die-cut body including a central portion from which extend folding perimetrical side walls which can be upwardly folded with respect to the central portion, to be brought to an erected condition for forming a box body. The collapsible box further includes a top plastics material frame, defining and engaging slot in which the free edge portions of the erected side walls can be snap engaged.
REFERENCES:
patent: 775090 (1904-11-01), Pilz
patent: 2191291 (1940-02-01), Smith
patent: 2544283 (1951-03-01), Snyder
patent: 2954914 (1960-10-01), Herlihy
patent: 3659774 (1972-05-01), Mielke
patent: 4624380 (1986-11-01), Wernette
patent: 4807756 (1989-02-01), Young et al.
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